Like most of these, I don't know if he should have been killed, but I know what he could have done to make him alive today....and so do most of you. Again, not saying he should have been killed just that if he had listened to and done what the cops instructed him to do he would not have been shot.
Disobeying a police officer can be a misdemeanor or a felony, but it cannot be a capital crime where the officer is the judge, jury and executioner.
An officer should be required, before firing their gun at someone, to deduce their life is in immediate danger. If the person they killed turns out not to have had a deadly weapon on their person, the officer should at the very least be charged with manslaughter.